Summary
Bones, cartilage and joints that support the body, protect organs and allow movement.
In depth
206 bones in adults. Functions: support, protection, movement, mineral storage, blood cell production in red marrow. Axial skeleton (skull, spine, ribs) and appendicular skeleton (limbs, girdles). Cartilage covers joint surfaces.
Bone is a living tissue with collagen and mineral. Red marrow makes blood cells; yellow marrow stores fat. Fractures heal through callus formation.
Remember: bones are not inert; they remodel continually.
Frequently asked questions
What is Skeletal System?
Bones, cartilage and joints that support the body, protect organs and allow movement.
Which area of biology covers Skeletal System, and how advanced is it?
Skeletal System is one of the 51 topics in Human Physiology. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Tissues and Organs, Liver Functions, Excretory System.
Can you give an example of Skeletal System?
The skull protects the brain, ribs the lungs and heart.
What should I learn before Skeletal System?
Skeletal System is a Beginner topic, so no earlier topic is required. Other Beginner topics in Human Physiology that pair well with it include Homeostasis, Tissues and Organs, Muscular System.
What topics are related to Skeletal System?
The closest topics to Skeletal System are Tissues and Organs, Liver Functions, Excretory System, Lymphatic System. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Skeletal System?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Skeletal System. To practise the whole of Human Physiology, use the Human Physiology quiz.
How is Skeletal System different from Tissues and Organs?
Skeletal System: Bones, cartilage and joints that support the body, protect organs and allow movement. Tissues and Organs: Cells form tissues, tissues form organs and organs work together in systems. Read both side by side and note what each one explains.
How should I study Skeletal System step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Tissues and Organs and explain the difference aloud. Finally, take the Human Physiology quiz and come back to this page for any question you miss.